3. Calculate the expected utility of a person who has wealth W = $10000, faces a potential...
Question:
3. Calculate the expected utility of a person who has wealth W = $10000, faces a potential loss of C = $5000 with probability and has a utility index u(x) over money:
(i) = 0.01 and u(x) = x2;
(ii) = 0.01 and u(x) = x;
(iii) = 0.1 and u(x) = 2x/10000;
(iv) = 0.1 and u(x) = ln(x) with the natural base
(v) = 0.1 and u(x) = log10(x) with the base 10
Which of the above utility indexes exhibit risk aversion? Find the certainty equivalents and risk premia of the gambles in each of the above cases. Explain the similarity between cases (iv) and (v).
4. Suppose that Alice prefers $700 for sure rather than a lottery. Suppose also that she complies with Independence. ($1000 w.p. 80%; $0 w.p. 20%)
(i) Does she necessarily prefer $600 for sure rather than a lottery ($1000 w.p. 70%; $0 w.p. 30%)
(ii) Does she necessarily prefer a lottery( $700 w.p. 50%; $0 w.p. 50%) to ($1000 w.p. 40%; $0 w.p. 60%)
(iii) Does she necessarily prefer a lottery ($800 w.p. 10%; $0 w.p. 90%) to ($1000 w.p. 8%; $0 w.p. 92%)
Microeconomics An Intuitive Approach with Calculus
ISBN: 978-0538453257
1st edition
Authors: Thomas Nechyba